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Finding the Fourth Proportional to 61,515.54, 92,274.21 and 19,394.82

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Solution

The fourth proportional to 61,515.54, 92,274.21 and 19,394.82 is: 29,092.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,515.54 : 92,274.21 = 19,394.82 : x
  2. Step 2: Convert to fraction form
    61,515.54/92,274.21 = 19,394.82/x
  3. Step 3: Cross multiply
    61,515.54x = 92,274.21 × 19,394.82
  4. Step 4: Simplify right side
    61,515.54x = 1,789,641,693.59
  5. Step 5: Solve for x
    x = 1,789,641,693.59/61,515.54
  6. Step 6: Final answer
    x = 29,092.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.